package main

import "fmt"

//二维数组
func main() {
	students := map[string]map[string]string{
		"no1": {"name": "黄斌", "sex": "男"},
		"no2": {"name": "噜噜", "sex": "男"},
		"no3": {"name": "陈娱", "sex": "女"},
	}
	_, find := students["no1"]
	if find == true {
		fmt.Println("有no1key")
	} else {
		fmt.Println("没no1key")
	}
}
